678323558048 has 12 divisors (see below), whose sum is σ = 1335449504970. Its totient is φ = 339161779008.

The previous prime is 678323558041. The next prime is 678323558111. The reversal of 678323558048 is 840855323876.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 675532760464 + 2790797584 = 821908^2 + 52828^2 .

It is not an unprimeable number, because it can be changed into a prime (678323558041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10598805563 + ... + 10598805626.

Almost surely, 2^678323558048 is an apocalyptic number.

It is an amenable number.

678323558048 is a deficient number, since it is larger than the sum of its proper divisors (657125946922).

678323558048 is a wasteful number, since it uses less digits than its factorization.

678323558048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21197611199 (or 21197611191 counting only the distinct ones).

The product of its (nonzero) digits is 38707200, while the sum is 59.

The spelling of 678323558048 in words is "six hundred seventy-eight billion, three hundred twenty-three million, five hundred fifty-eight thousand, forty-eight".